US6571644B2 - Method and device for determining the filling level for the ascertainment of the simmering process of mineral oil products - Google Patents

Method and device for determining the filling level for the ascertainment of the simmering process of mineral oil products Download PDF

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Publication number
US6571644B2
US6571644B2 US09/815,506 US81550601A US6571644B2 US 6571644 B2 US6571644 B2 US 6571644B2 US 81550601 A US81550601 A US 81550601A US 6571644 B2 US6571644 B2 US 6571644B2
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US
United States
Prior art keywords
level
filling level
measuring cylinder
weight
filling
Prior art date
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Expired - Fee Related, expires
Application number
US09/815,506
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English (en)
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US20010025527A1 (en
Inventor
Bernhard Handschuck
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Petrotest Instruments GmbH and Co KG
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Petrotest Instruments GmbH and Co KG
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Assigned to PETROTEST INSTRUMENTS GMBH & CO. KG reassignment PETROTEST INSTRUMENTS GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HANDSCHUCK, BERNHARD
Publication of US20010025527A1 publication Critical patent/US20010025527A1/en
Priority to US10/353,582 priority Critical patent/US20030110855A1/en
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Publication of US6571644B2 publication Critical patent/US6571644B2/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/20—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of weight, e.g. to determine the level of stored liquefied gas

Definitions

  • the invention concerns a method and a device for determining the filling level and can be applied, in particular, for the ascertainment of the simmering process of mineral oil products.
  • the presentation of the temperature to the retained liquid volume provides conclusions with regard to the composition and usability of the distilled material and is internationally standardized. In particular, it is used in refineries for the purpose of inspecting fuels.
  • the invention is based on the task assignment of creating a method and a device which make possible the realization of an inexpensively manufacturable and reliably functioning measuring arrangement without the use of moving parts.
  • a significant advantage of the invention lies in the fact that no moving parts are required for determining the filling level. This is realized in such a way that by means of at least two stationary sensors, a first filling level (level 1 ) and at least a second filling level (level 2 ) are defined and the number of drops required for reaching level 1 and level 2 is recorded, by way of a further sensor the number of drops dropped in during the simmering process is counted and, by way of calculation, the additional partial volume and the filling level is determined, or by means of the stationary sensors the first filling level (level 1 ) and at least the second filling level (level 2 ) are defined and the weight required for reaching level 1 and level 2 is recorded, the additional weight in the simmering process is measured and, again by means of calculation, the additional partial volume and the filling gauge level is determined.
  • a device which is inexpensive to manufacture, easy to operate and convenient to maintain is realized in such a way that, for the purpose of level recording in a measuring cylinder in a measuring arrangement a first stationary measuring sensor and at least a second stationary measuring sensor as well as a metering sensor is arranged, where the positions of the measuring sensors represent a defined relation to the filling gauge level in the measuring cylinder and the metering sensor records the number of drops dropped in during the simmering process.
  • FIG. 1 A measuring arrangement for the recording of the filling level by means of light barriers
  • FIG. 2 A principle illustration of the measuring arrangement in accordance with the state of the art
  • a certain sample amount is heated up in a distillation flask 1 under pre-specified conditions and again condensed by way of a cooling tube 3 .
  • the condensed amount is retained in a measuring cylinder 4 and the dependency of the volume increase to the temperature 2 prevailing in the distillation flask.
  • At least two light barriers L 1 , L 2 are arranged which are calibrated once (volume filling level), so that their position represents a fixed and known relation to the respective filling degree of the measuring cylinder 4 .
  • liquid level 6 in each case, between both light barrier positions be ascertained, then this must be done by interpolation with the inclusion of a further reference variable.
  • the number of the passing drops 5 is adopted which is ascertained by way of a further light barrier LT.
  • the drops 5 are counted and the partial volume at the location x between two calibrated marks L 1 -L 2 is proportionately ascertained.
  • sensors acting similar to the light barriers can be applied, such as switches, pressure switches, proximity elements (e.g., with the help of metal floating bodies) or self-heated temperature sensors.
  • a scale is placed under the measuring cylinder or weight sensors are suitably arranged. In this way, the measured masses when passing weight 1 and weight 2 can be converted onto the corresponding volume in the same manner as in the case of the light barrier embodiment example.
  • the glass surface of the measuring flask 4 does not go blind as a result of condensate formation and that the tempering of the same takes place as quickly as possible. Normally, this is done in a tempering chamber.
  • a tempering chamber in the form of a block and extensively adapted to the measuring cylinder 4 is arranged.
  • the block, and with it the measuring cylinder 4 is directly or indirectly tempered e.g., by way of liquid.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
US09/815,506 2000-03-23 2001-03-23 Method and device for determining the filling level for the ascertainment of the simmering process of mineral oil products Expired - Fee Related US6571644B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/353,582 US20030110855A1 (en) 2000-03-23 2003-01-29 Method and device for determining the filling level for the ascertainment of the simmering process of mineral oil products

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10026394 2000-03-23
DE10026394.1 2000-03-23
DE10026394 2000-03-23

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/353,582 Division US20030110855A1 (en) 2000-03-23 2003-01-29 Method and device for determining the filling level for the ascertainment of the simmering process of mineral oil products

Publications (2)

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US20010025527A1 US20010025527A1 (en) 2001-10-04
US6571644B2 true US6571644B2 (en) 2003-06-03

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Family Applications (2)

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US09/815,506 Expired - Fee Related US6571644B2 (en) 2000-03-23 2001-03-23 Method and device for determining the filling level for the ascertainment of the simmering process of mineral oil products
US10/353,582 Abandoned US20030110855A1 (en) 2000-03-23 2003-01-29 Method and device for determining the filling level for the ascertainment of the simmering process of mineral oil products

Family Applications After (1)

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US10/353,582 Abandoned US20030110855A1 (en) 2000-03-23 2003-01-29 Method and device for determining the filling level for the ascertainment of the simmering process of mineral oil products

Country Status (4)

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US (2) US6571644B2 (de)
EP (1) EP1136795B1 (de)
AT (1) ATE328267T1 (de)
DE (1) DE50109915D1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120014405A1 (en) * 2010-07-16 2012-01-19 Petroleum Analyzer Company, Lp Drop Counter And Flow Meter For Apparatus And Method For Determining The Thermal Stability Of Fluids
US20120283632A1 (en) * 2009-12-30 2012-11-08 Fredrik Svensson Infusion Control Device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015116392A1 (de) * 2015-09-28 2017-03-30 Endress+Hauser Conducta Gmbh+Co. Kg Vorrichtung zum Dosieren einer Flüssigkeit

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880764A (en) * 1957-05-23 1959-04-07 Technicon Chromatography Corp Drop volume measuring apparatus
US3563090A (en) * 1968-09-18 1971-02-16 Basil V Deltour Drop monitor
US3593579A (en) * 1969-07-16 1971-07-20 Mennen Greatbatch Electronics Liquid drop sensing and counting system
US4432761A (en) * 1981-06-22 1984-02-21 Abbott Laboratories Volumetric drop detector
US4623331A (en) * 1983-12-09 1986-11-18 Siemens Aktiengesellschaft Apparatus for the registration of drops in an infusion device
US4703314A (en) * 1986-02-27 1987-10-27 Fisher Scientific Group, Inc. Empty container detector with drop sensor
US5439442A (en) * 1992-09-18 1995-08-08 Bellifemine; Francesco Device for monitoring and controlling an intravenous infusion system
US5938643A (en) * 1997-07-10 1999-08-17 Unisor Multisystems Ltd Drop monitoring unit for infusion sets

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212318A (en) * 1962-04-30 1965-10-19 United Aircraft Corp Calibration device
DE2937476A1 (de) * 1979-09-17 1981-04-02 Agfa-Gevaert Ag, 5090 Leverkusen Vorrichtung zur messung der oberflaechenspannung
US4487278A (en) * 1983-08-24 1984-12-11 Trebor Industries, Inc. Instrument for providing automatic measurement of test weight
US4680977A (en) * 1985-03-06 1987-07-21 Ivac Corporation Optical flow sensor
DE3702609C1 (de) * 1987-01-29 1988-06-16 Braun Melsungen Ag Druckinfusionsapparat
US4936828A (en) * 1987-06-02 1990-06-26 Kophu Chiang Liquid drop image sensor
NL9101825A (nl) * 1991-10-30 1993-05-17 Academisch Ziekenhuis Vrije Un Werkwijze voor nauwkeurige uitstroomdebiet bepaling van vloeistoffen en op een inrichting voor het uitvoeren van die werkwijze.
US5186057A (en) * 1991-10-21 1993-02-16 Everhart Howard R Multi-beam liquid-drop size/rate detector apparatus
US6761191B2 (en) * 2000-11-03 2004-07-13 Robert A. Rosen Liquid filling system with improved fluid displacement, nozzle and container handling, cleaning, and calibration/set-up capabilities

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880764A (en) * 1957-05-23 1959-04-07 Technicon Chromatography Corp Drop volume measuring apparatus
US3563090A (en) * 1968-09-18 1971-02-16 Basil V Deltour Drop monitor
US3593579A (en) * 1969-07-16 1971-07-20 Mennen Greatbatch Electronics Liquid drop sensing and counting system
US4432761A (en) * 1981-06-22 1984-02-21 Abbott Laboratories Volumetric drop detector
US4623331A (en) * 1983-12-09 1986-11-18 Siemens Aktiengesellschaft Apparatus for the registration of drops in an infusion device
US4703314A (en) * 1986-02-27 1987-10-27 Fisher Scientific Group, Inc. Empty container detector with drop sensor
US5439442A (en) * 1992-09-18 1995-08-08 Bellifemine; Francesco Device for monitoring and controlling an intravenous infusion system
US5938643A (en) * 1997-07-10 1999-08-17 Unisor Multisystems Ltd Drop monitoring unit for infusion sets

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120283632A1 (en) * 2009-12-30 2012-11-08 Fredrik Svensson Infusion Control Device
US8939929B2 (en) * 2009-12-30 2015-01-27 Fredrik Svensson Infusion control device
US20120014405A1 (en) * 2010-07-16 2012-01-19 Petroleum Analyzer Company, Lp Drop Counter And Flow Meter For Apparatus And Method For Determining The Thermal Stability Of Fluids
US8277118B2 (en) * 2010-07-16 2012-10-02 Petroleum Analyzer Company, Lp Drop counter and flow meter for apparatus and method for determining the thermal stability of fluids

Also Published As

Publication number Publication date
EP1136795B1 (de) 2006-05-31
ATE328267T1 (de) 2006-06-15
DE50109915D1 (de) 2006-07-06
EP1136795A3 (de) 2002-06-05
US20010025527A1 (en) 2001-10-04
EP1136795A2 (de) 2001-09-26
US20030110855A1 (en) 2003-06-19

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